// This code is derived from jcifs smb client library <jcifs at samba dot org>
// Ported by J. Arturo <webmaster at komodosoft dot net>
//  
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
// 
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
// 
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
using SharpCifs.Util;

namespace SharpCifs.Smb
{
    internal class NetServerEnum2Response : SmbComTransactionResponse
    {
        internal class ServerInfo1 : IFileEntry
        {
            internal string Name;

            internal int VersionMajor;

            internal int VersionMinor;

            internal int Type;

            internal string CommentOrMasterBrowser;

            public virtual string GetName()
            {
                return Name;
            }

            public new virtual int GetType()
            {
                return (Type & unchecked((int)(0x80000000))) != 0
                            ? SmbFile.TypeWorkgroup
                            : SmbFile.TypeServer;
            }

            public virtual int GetAttributes()
            {
                return SmbFile.AttrReadonly | SmbFile.AttrDirectory;
            }

            public virtual long CreateTime()
            {
                return 0L;
            }

            public virtual long LastModified()
            {
                return 0L;
            }

            public virtual long Length()
            {
                return 0L;
            }

            public override string ToString()
            {
                return "ServerInfo1["
                            + "name=" + Name
                            + ",versionMajor=" + VersionMajor
                            + ",versionMinor=" + VersionMinor
                            + ",type=0x" + Hexdump.ToHexString(Type, 8)
                            + ",commentOrMasterBrowser=" + CommentOrMasterBrowser + "]";
            }

            internal ServerInfo1(NetServerEnum2Response enclosing)
            {
                this._enclosing = enclosing;
            }

            private readonly NetServerEnum2Response _enclosing;
        }

        private int _converter;

        private int _totalAvailableEntries;

        internal string LastName;

        internal override int WriteSetupWireFormat(byte[] dst, int dstIndex)
        {
            return 0;
        }

        internal override int WriteParametersWireFormat(byte[] dst, int dstIndex)
        {
            return 0;
        }

        internal override int WriteDataWireFormat(byte[] dst, int dstIndex)
        {
            return 0;
        }

        internal override int ReadSetupWireFormat(byte[] buffer, int bufferIndex, int len
            )
        {
            return 0;
        }

        internal override int ReadParametersWireFormat(byte[] buffer, int bufferIndex, int len)
        {
            int start = bufferIndex;
            Status = ReadInt2(buffer, bufferIndex);
            bufferIndex += 2;
            _converter = ReadInt2(buffer, bufferIndex);
            bufferIndex += 2;
            NumEntries = ReadInt2(buffer, bufferIndex);
            bufferIndex += 2;
            _totalAvailableEntries = ReadInt2(buffer, bufferIndex);
            bufferIndex += 2;
            return bufferIndex - start;
        }

        internal override int ReadDataWireFormat(byte[] buffer, int bufferIndex, int len)
        {
            int start = bufferIndex;
            ServerInfo1 e = null;
            Results = new ServerInfo1[NumEntries];
            for (int i = 0; i < NumEntries; i++)
            {
                Results[i] = e = new ServerInfo1(this);
                e.Name = ReadString(buffer, bufferIndex, 16, false);
                bufferIndex += 16;
                e.VersionMajor = buffer[bufferIndex++] & unchecked(0xFF);
                e.VersionMinor = buffer[bufferIndex++] & unchecked(0xFF);
                e.Type = ReadInt4(buffer, bufferIndex);
                bufferIndex += 4;
                int off = ReadInt4(buffer, bufferIndex);
                bufferIndex += 4;
                off = (off & unchecked(0xFFFF)) - _converter;
                off = start + off;
                e.CommentOrMasterBrowser = ReadString(buffer, off, 48, false);
                if (Log.Level >= 4)
                {
                    Log.WriteLine(e);
                }
            }
            LastName = NumEntries == 0 ? null : e.Name;
            return bufferIndex - start;
        }

        public override string ToString()
        {
            return "NetServerEnum2Response["
                        + base.ToString()
                        + ",status=" + Status
                        + ",converter=" + _converter
                        + ",entriesReturned=" + NumEntries
                        + ",totalAvailableEntries=" + _totalAvailableEntries
                        + ",lastName=" + LastName + "]";
        }
    }
}
